Fallos del tipo CWE-416

5103 resultados

Uso após liberação de memória

Ocorre quando o código tenta acessar uma área de memória que já foi liberada (deallocated). O programa continua usando um ponteiro que aponta para um endereço inválido, causando leitura/escrita em memória não controlada. Isso pode levar a crash, corrupção de dados ou execução arbitrária de código.

Ejemplo

Um navegador aloca memória para um objeto DOM, depois o remove da página e libera a memória. Se um script JavaScript ainda tentar acessar esse objeto deletado, o navegador tenta ler/escrever em um endereço que agora contém outro dado, causando comportamento impredizível ou exploração por atacante.

Cómo mitigar

Use linguagens com garbage collection (Java, Python, C#) ou práticas rigorosas: null os ponteiros após free(), use smart pointers (C++), evite compartilhamento de referências sem sincronização, faça testes de memória com ferramentas como Valgrind ou AddressSanitizer.

CVE-2023-38114HIGHFoxit PDF Reader AcroForm Doc Object Use-After-Free Remote Code Execution VulnerabilityEPSS 0.5%CVE-2025-30232HIGHA use-after-free in Exim 4.96 through 4.98.1 could allow users (with command-line access) to escalate privileges.EPSS 0.5%CVE-2026-79187HIGHUse after free in WebRTC in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to execute arbitrary code inside the sandbox via EPSS 0.5%CVE-2026-13870HIGHUse after free in WebView in Google Chrome on Android prior to 150.0.7871.47 allowed a remote attacker to execute arbitrary code inside a saEPSS 0.5%CVE-2026-9884HIGHUse after free in Browser in Google Chrome on Mac prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code via a crafted EPSS 0.5%CVE-2026-16806HIGHUse after free in WebMCP in Google Chrome prior to 150.0.7871.186 allowed a remote attacker to execute arbitrary code inside a sandbox via aEPSS 0.5%CVE-2018-10902HIGHIt was found that the raw midi kernel driver does not protect against concurrent access which leads to a double realloc (double free) in sndEPSS 0.5%CVE-2025-49743MEDIUMWindows Graphics Component Elevation of Privilege VulnerabilityEPSS 0.5%CVE-2026-15121HIGHUse after free in WebRTC in Google Chrome prior to 150.0.7871.115 allowed a remote attacker to execute arbitrary code inside a sandbox via aEPSS 0.5%CVE-2026-5860HIGHUse after free in WebRTC in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to execute arbitrary code inside a sandbox via a EPSS 0.5%CVE-2026-84347HIGHUse after free in WebRTC in Google Chrome prior to 152.0.7977.75 allowed a remote attacker to execute arbitrary code inside the sandbox via EPSS 0.5%CVE-2026-17881HIGHInteger overflow in WebXR in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to execute arbitrary code inside a sandbox via aEPSS 0.5%CVE-2026-8016HIGHUse after free in WebRTC in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to execute arbitrary code inside a sandbox via a EPSS 0.5%CVE-2026-76045HIGHUse after free in WebGL in Google Chrome prior to 151.0.7922.169 allowed a remote attacker to execute arbitrary code inside the sandbox via EPSS 0.5%CVE-2024-4771HIGHA memory allocation check was missing which would lead to a use-after-free if the allocation failed. This could have triggered a crash or poEPSS 0.5%CVE-2026-4678HIGHUse after free in WebGPU in Google Chrome prior to 146.0.7680.165 allowed a remote attacker to execute arbitrary code inside a sandbox via aEPSS 0.5%CVE-2024-8636HIGHHeap buffer overflow in Skia in Google Chrome prior to 128.0.6613.137 allowed a remote attacker to potentially exploit heap corruption via aEPSS 0.5%CVE-2026-9952HIGHUse after free in WebAudio in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sandbox viaEPSS 0.5%CVE-2022-38442HIGHAdobe Dimension SKP File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.5%CVE-2022-38444HIGHAdobe Dimension SKP File Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 0.5%